Watch-movement fastener.



PATENTED MAY 19, 1908.

0. KUMMER.

WATCH MOVEMENT FASTBNER.

APPLICATION FILED JULY 11, 1907.

u m L W M M W UNITED STA'Ijibl PATENT OFFICE.

CARL KUMMER, OF HAMPSHIRE, ILLINOIS.

WATCH-MOVEMENT FASTENER.

To all whom it may concern:

Be it known that I, CARL KUMMER, citizen of the United. States, residing at Hampshire, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Watch-Movement Fasteners, of which the following is a specification.

This invention relates to watches, and the particular object of the invention is to provide improved means for securely holding the movement in its case. The means new in use for accomplishing this purpose is usually a broad headed screw carried by the rear plate of the movement with one side cut away so that the movement can readily be placed within the case and removed therefrom, and afterthe movement is inserted to rotate the broad headed screw into such relation with the case of the watch that the part which is not cut away will engage the case and lock the movement within the same. It has been found. in practice that this construction does not securely hold the movement against working loose and it is necessary to retightcn the screw from time to time in order to keep the movement securely fastened in the case.

The object of the invention is to provide a means for holding the portion of the broad headed. screw which is cut away in engagement with the watch case at all times. This is accomplished by means of plates adjustably secured to the rear plate of the movement.

In the accompanying drawings :Figure 1 is an elevation showing the manner of securing the movement within the watch case. Fig. 2 is a perspective view of the plate A.

Referring to the drawings in detail, 1 designates a casing in which the movement of the watch is carried.

2 designates the rear plate of the movement, and 3 designates the broad headed screws. Secured to the rear plate are the three plates A, B and C. These plates are formed in such a manner and placed in such a position as to partly surround the broad headed. screws.

The plate A is provided with notches 6 and 7. The case screw 3 is placed in position with one of the notches 6 or 7, engaging the flat side thereof and the screws 4 tightened said screws 4 pass through slots 5 in the Specification of Letters Patent.

Application filed July 11, 1907.

Patented May 19, 1908.

Serial No. 383,310.

plate, which allow said. plate to be shifted to the right or left in order that the case screw may be turned and the movement' withdrawn.

Plate B is provided with notches 7 and 8 for engaging the case screw and is slidable the same as plate A for the purpose of permitting the removal of the case screw.

Plate 0 which is provided with the two notches 9 and 10 is pivoted at 11 in order that either notch may be brought into contact with the case screw. The plate is held in fixed position by means of the screw 12 which passes through the slot 13. This slot allows the plate to swing on the pivot in or 'der that the case screw may be removed. It will be seen that by this arrangement the broad headed case screw is held firmly in contact with the watch case, preventing the movement from working loose.

It will be noticed that with the construction set forth the case screw may be readily removed or replaced by loosening the adjusting screw.

Having described my invention what I claim is 1. The combination of a watch case, a movement, screws for holding said movement within said case said screws being provided with flat sides, a plate slidably mounted upon the rear plate of the movement, said plate being provided at either end thereof with a slot through which passes a screw to hold the said plate in its adjusted position, notches formed upon the inner face of said plate saidnotches being adapted to engage the said screws and hold the same against movement.

2. The combination of a watch case, a movement, screws provided with flat sides for holding the movement within the case, a

plate adj ustably secured at either end to the rear plate of the movement, means for holding said plate in its adjusted position, said plate being adapted to hold the flat-sided screws in engagement with the case of the watch.

In testimony whereof I have affixed my signature, in presence of two witnesses.

CARL KUMMER. I Vitnesses OHAs. H. BACKUS, CnAs. W. Jonnson. 

